Metalic spool and method of making the same



June 1 1926. 1,586,640

K. G. ANDERSON I METALLIC SP OOL AND METHODOF MAKING THE SAME Filed March 9, 1925 EYE/72x07.-

Jtfmuie (I? inderfi m Patented June 1, 1926.-

UNITED STATES PATENT OFFICE.

more a. aunnasou, or nocxrom), ILLmoIs, ASSIGNOR ro I. L. CLARK manoracroams 00., or nocxroan, ILLINOIS, A CORRQBATION or ILLINOIS.

HETALLIG sro'oL AND METHOD OF Maxine THE same.

Application filed March 9, 1925. Serial No. 13,969.

that a spool of an advantageous character ma be produced.

n the accompanying drawings Figure 1 is an elevational View of a spool constructed in accordance with my invention.

. Fig. 2 is a fragmentary longitudinal sectional view through one end 0 the body or cylinder and through an end piece orhead l prior to the assembling operation. Fig. 3 is a similar View but showing the parts secured togetherb' I Figs. 4 and 5 are views respectively similar to Figs. 2 and 3 but showing a slightly modified form of the invention.

L The body of the spool indicated by the numeral 7 is in the form of a cylinder or tube formed] in the presentinstance by being rolled up from'a fiat sheet of metal-of suitable gage. 8 and 8:; designate the heads of F the spool, which are secured upon opposite body 7 in accordance ends of the tubular with my invention.

The heads Sand 8 are alike formed from a disk of sheet metal having its outerv pcripheral edge curled inwardl to form a peripheral strengthening bea 9. The dlsk has a central aperture therein defined by an annular head 10 of a diameter corresponding to the diameter. of the bod 7 and open- 'ing in the direction ofthe'bo y so .as to recame an end ortion 11. thereof.

Each-end oi the tubular body 7 has formed thereon an outwardly projecting head 12 terminating in the end portion 11, which latter 1 is made of a length substantially equal to the v depth ofthe bead 10 in the head.

. as shown in'Fig. 2, they are.

forming devices the bead 10 and the end ortion 11, are caused to interlock, the bea 12 on the body being flattened. to form afseat or shoulder 13. This operation upon the bead openin inwardly projecting bead interengaging .he parts having been separately formed rought into assembled relation with the end portion 11 of. the'tubular'body entered .into the bead 10 of the head, and by-means of-suitable groove of the 10 and the end portion 11 therein consists in forming a fold in the outer wall of the bead 10 and the adjacent portion of the head, thus, providing an inw rdly projectingbead 14 as shown in Fig. 3. This inwardly projecting bead engages with the shoulder 13 formed by the bead 12, and the end portion 11 is bent so'as to form with this shoulder portion 13 of the bead 12 an interlocking channel or groove. 15 receiving the bead 14.

It will be seen that the construction provides at the .end 'of the tubular body an outwardly opening groove 15 and an inwardly directed bead: 14 on the head engaging in said groove, with a curl 18 bent around the end of the'body. This construction insures that the head shall be firmly secured onto the end of the body. As shown in Figs. 4

and 5 the curl 18 may be extended into the I end of the tubular body a short distance, terminating, for example, at 17; but in the construction shown in Figs. 2 and 3, the parts are additlonally secured together by interlocking the .curl 18 in an inwardly open- Lug1 groove 19 formed by the bead 12 of the I claim as my invention 9 1. A- metallic spool comprising a tubular body having an annular bead near but spaced a short distance from one end, and a head secured upon said/ end of the tubular body, said end portion of the body being bent to form with said head an outwardly groove, and the head providing an with said groove 1n the body and a curl passing around the bent end of the body;

2. Ametallic spool having a tubular body shaped to" form inwardly and outwardly opening. annulair grooves, and a head shaped .to forman inwardly projecting bead engaging in the outwardly opening groove of the body and 'a curl integral with said bead bent around the end of the bodyand into the inwardlyopening groove therein.

3. A inetallic spool comprising a tubular body and a pair of heads on opposite ends of the body, each end of the body being shaped to form' inwardly and outwardly opening annular grooves and each head being shaped to formian inwardly projecting in the outwardly opening dy, and a curl integral with said head bentaround the end of the body.

4. The method of making metallic spools bead engagin which consists in making a tubular body portion with an annular bead and a projecting end portion, forming a head from a flat sheet of metal with an annular beadtherein providing a groove adapted to receive the end portionof the body, and shaping said end portion and bead together to form an outwardly opening groove in the body and an inwardly prqecting bead on the head folded within the outwardly opening groove. (a y In testimony whereof, I have hereunto affixed my signature.

V KNUTE G. ANDERSON. 

